Plants Flashcards
how do ferns reproduce?
brown dots on the leaves mean that the plant is reproducing (dots are spores)
the plant undergoes meiosis to produce these spores
What phylum to angiosperms belong to?
Anthophyta
what is a common name for flowering plants?
angiosperms
what is the haploid stage called?
gamephyte
what is the name of horn worts?
anthocerophyta
what is the main pigment in plants?
chlorophyll
what is a cuticle
a waxy skin that waterproofs bryophytes
what were the first plants?
green algae
what stage do bryophytes spend most of their time in?
gametophyte stage
What is the nickname for vascular plants?
Tracheophytes
what polysaccharide do plants have?
cellulose
what purpose does a seed serve?
protective shell with food inside that lies dormant until environmental conditions are right for germination
what is a living fossil?
can be found in the fossil record for millions of years and have not changed much since then
ex: gynkophyta
What are cotyledons?
Part of the seed that eventually becomes a leaf
why to plants have fruits?
attract animals that will spread a plants seeds
how do gymnosperms differ from angiosperms?
they have seeds but no fruits or flowers
What is endosperm?
Nutrition for the plants embryo in the seed
what is the main example of pterophyta?
ferns
what are the 3 phyla that make up bryophytes?
hepaticophyta
anthocerophyta
bryophyta
what are gemmae?
the cells within gemmae cups that splash out and grow new plants when it rains
in bryophytes, how to the egg and sperm come into contact?
when it rains, water carries the sperm to the waiting egg
what are cotyledons?
leaf-like structures in seeds
What is the receptacle?
The base of a flower
what are female pine cones called?
ovulate
generally larger
what is the most common type of plant?
flowering plants (angiosperms)
what is special about the seeds on pines?
have a wing hanging off to help it travel farther
what is the male part of a flower called?
stamen
what are gemmae cups?
cup-like structures in liverworts that hold gemmae